Bone Loss, Age-Related, Clinical Trial
Official title:
Effect of the High Impact Exercise on Bone Density in Prepuberal Girls in 12 Private Schools in Bogota - Colombia During 2016 - 2017. Open Label Randomized Controlled Trial
Osteoporosis has become a worldwide concern an a matter of public health as osteoporosis is
a major contributing factor associated with insufficiency fracture of the spine, wrist and
proximal femur, and as a result, can diminish quality of life as well as increase direct and
indirect healthcare costs.
The pathophysiology of osteoporosis is based on two main factors; low bone mass and age
associated architectural changes within the bone, high impact exercise in childhood can
improve the peak bone mass and bone architecture. The evidence suggests that bone adaptation
to increased load is optimal in early puberty (Tanner stages I and II) since around 30% of
total body adult bone mass is accrued during this period.
However, the optimal exercise program for increasing peak bone mineral content is still
unclear. Therefore, the aim of this study is to assess if 15 minutes of high-impact exercise
three times per week improve areal bone mineral density assessed by DXA of pre pubertal
girls after a ten-month regimen compared to low-impact exercise. This information could
highly impact the development of public health policies directed to pre pubertal girls.
Status | Suspended |
Enrollment | 276 |
Est. completion date | May 2017 |
Est. primary completion date | November 2016 |
Accepts healthy volunteers | Accepts Healthy Volunteers |
Gender | Female |
Age group | 8 Years to 10 Years |
Eligibility |
Inclusion Criteria: - Girls between ages 8 to 10 - Tanner I Exclusion Criteria: - Precocious menarche (within the selected timeframe) - Chronic disorders or medications known to affect bone metabolism or musculoskeletal function. - Body Mass Index 30 or higher - Regular vigorous physical activity (training more than 8 hours per week) |
Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Single Blind (Outcomes Assessor)
Country | Name | City | State |
---|---|---|---|
n/a |
Lead Sponsor | Collaborator |
---|---|
Fundación Santa Fe de Bogota | Instituto Colombiano para el Desarrollo de la Ciencia y la Tecnología (COLCIENCIAS) |
Bass SL, Saxon L, Daly RM, Turner CH, Robling AG, Seeman E, Stuckey S. The effect of mechanical loading on the size and shape of bone in pre-, peri-, and postpubertal girls: a study in tennis players. J Bone Miner Res. 2002 Dec;17(12):2274-80. — View Citation
Fuchs RK, Bauer JJ, Snow CM. Jumping improves hip and lumbar spine bone mass in prepubescent children: a randomized controlled trial. J Bone Miner Res. 2001 Jan;16(1):148-56. — View Citation
Grimston SK, Willows ND, Hanley DA. Mechanical loading regime and its relationship to bone mineral density in children. Med Sci Sports Exerc. 1993 Nov;25(11):1203-10. — View Citation
Hernandez CJ, Beaupré GS, Carter DR. A theoretical analysis of the relative influences of peak BMD, age-related bone loss and menopause on the development of osteoporosis. Osteoporos Int. 2003 Oct;14(10):843-7. Epub 2003 Aug 7. — View Citation
Kontulainen SA, Hughes JM, Macdonald HM, Johnston JD. The biomechanical basis of bone strength development during growth. Med Sport Sci. 2007;51:13-32. Review. — View Citation
MacKelvie KJ, McKay HA, Petit MA, Moran O, Khan KM. Bone mineral response to a 7-month randomized controlled, school-based jumping intervention in 121 prepubertal boys: associations with ethnicity and body mass index. J Bone Miner Res. 2002 May;17(5):834-44. — View Citation
Rauch F, Schoenau E. Changes in bone density during childhood and adolescence: an approach based on bone's biological organization. J Bone Miner Res. 2001 Apr;16(4):597-604. Review. — View Citation
Sayers A, Mattocks C, Deere K, Ness A, Riddoch C, Tobias JH. Habitual levels of vigorous, but not moderate or light, physical activity is positively related to cortical bone mass in adolescents. J Clin Endocrinol Metab. 2011 May;96(5):E793-802. doi: 10.1210/jc.2010-2550. Epub 2011 Feb 16. — View Citation
Witzke KA, Snow CM. Effects of plyometric jump training on bone mass in adolescent girls. Med Sci Sports Exerc. 2000 Jun;32(6):1051-7. — View Citation
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | bone mineral density (BMD) are presented for the total Body total bone mineral density | whole body whole Amount of mineral matter per square centimeter of bones. | 36 weeks | No |